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Fixes issue #22016
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This is an implementation of RFC 899 and adds stdio functionality to the new
`std::io` module. Details of the API can be found on the RFC, but from a high
level:
* `io::{stdin, stdout, stderr}` constructors are now available. There are also
`*_raw` variants for unbuffered and unlocked access.
* All handles are globally shared (excluding raw variants).
* The stderr handle is no longer buffered.
* All handles can be explicitly locked (excluding the raw variants).
The `print!` and `println!` machinery has not yet been hooked up to these
streams just yet. The `std::fmt::output` module has also not yet been
implemented as part of this commit.
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some commits in OpenBSD base have corrected a problem of stack position.
Now, we can adjust more accurately the page guard in rust.
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This is leftover from #21843
If you still have `|&:| {}` closures in your code, simply remove the `&:` part.
[breaking-change]
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Now that the `std::env` module has had some time to bake this commit marks most
of its APIs as `#[stable]`. Some notable APIs that are **not** stable (and still
use the same `env` feature gate) are:
* `{set,get}_exit_status` - there are still questions about whether this is the
right interface for setting/getting the exit status of a process.
* `page_size` - this may change location in the future or perhaps name as well.
This also effectively closes #22122 as the variants of `VarError` are
`#[stable]` now. (this is done intentionally)
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Fixes #20978 for supported platforms (i.e. non-Android POSIX).
This uses `backtrace_pcinfo` to inspect the DWARF debug info and list the file and line pairs for given stack frame. Such pair is not unique due to the presence of inlined functions and the updated routine correctly handles this case. The code is modelled after libbacktrace's `backtrace_full` routine.
There is one known issue with this approach. Macros, when invoked, take over the current frame and shadows the file and line pair which has invoked a macro. In particular, this makes many panicking
macros a bit harder to inspect. This really is a debuginfo problem, and the backtrace routine should print them correctly with a correct debuginfo.
Some example trace:
```
thread '<main>' panicked at 'explicit panic', /home/arachneng/Works/git/rust/src/test/run-pass/backtrace-debuginfo.rs:74
stack backtrace:
1: 0xd964702f - sys::backtrace::write::h32d93fffb64131b2yxC
2: 0xd9670202 - panicking::on_panic::h3a4fcb37b873aefeooM
3: 0xd95b396a - rt::unwind::begin_unwind_inner::h576b3df5f626902dJ2L
4: 0xd9eb88df - rt::unwind::begin_unwind::h16852273847167740350
5: 0xd9eb8afb - aux::callback::h15056955655605709172
at /home/arachneng/Works/git/rust/<std macros>:3
at src/test/run-pass/backtrace-debuginfo-aux.rs:15
6: 0xd9eb8caa - outer::h2cf96412459fceb6ema
at src/test/run-pass/backtrace-debuginfo.rs:73
at src/test/run-pass/backtrace-debuginfo.rs:88
7: 0xd9ebab24 - main::h3f701287441442edasa
at src/test/run-pass/backtrace-debuginfo.rs:134
8: 0xd96daba8 - rust_try_inner
9: 0xd96dab95 - rust_try
10: 0xd9671af4 - rt::lang_start::h7da0de9529b4c394liM
11: 0xd8f3aec4 - __libc_start_main
12: 0xd9eb8148 - <unknown>
13: 0xffffffff - <unknown>
```
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The `u64_from_be_bytes` and `u64_to_be_bytes` functions are being deprecated
with no replacement for now.
[breaking-change]
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Now that the `std::env` module has had some time to bake this commit marks most
of its APIs as `#[stable]`. Some notable APIs that are **not** stable (and still
use the same `env` feature gate) are:
* `{set,get}_exit_status` - there are still questions about whether this is the
right interface for setting/getting the exit status of a process.
* `page_size` - this may change location in the future or perhaps name as well.
This also effectively closes #22122 as the variants of `VarError` are
`#[stable]` now. (this is done intentionally)
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- Fixed a couple of dead code warnings in std::sys::backtrace.
- Made `backtrace-debuginfo` test a no-op on non-Linux platforms.
- `backtrace-debuginfo` is no longer tested on pretty-rpass.
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which starts happening after ~2 hours of machine uptime.
Closes #17845
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This patch contains a couple time fixes to make Rust compile on Bitrig again. This does not affect OpenBSD.
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We were recording stability attributes applied to fields in the
compiler, and even annotating it in the libs, but the compiler didn't
actually do the checks to give errors/warnings in user crates.
Details in the commit messages.
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Implements `Debug` for `RwLock` and `arc::Weak` in the same way it is implemented for `rc::Weak` (basically copy & paste).
The lack of this implementation prevents the automatic implementation of `Debug` for structs containing members of these types.
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Instead of allocating the same ports for ipv4 and ipv6 tests, instead draw all
ports from the same pool. Some tests connect to just "localhost" on a particular
port which may accidentally be interacting with other tests as the ipv-what-ness
isn't specified with the string "localhost"
Relevant logs:
* [Deadlock of the `net::tcp::tests::listen_localhost` test][mac]
* [Failure of the `fast_rebind` test][win1]
* [Failure of `multiple_connect_interleaved_lazy_schedule_ip4`][win2]
[mac]: https://gist.github.com/alexcrichton/349c7ce7c620c1adb2f2
[win1]: https://gist.github.com/alexcrichton/7e3611faae2e1edaee6f
[win2]: https://gist.github.com/alexcrichton/4f5f87749af3ad0f9851
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unbreak openbsd/bitrig build after 2d200c9c (the complete build/check on openbsd is in progress)
@dhuseby maybe this one is in your list ?
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Fixes #20978 for supported platforms (i.e. non-Android POSIX).
This uses `backtrace_pcinfo` to inspect the DWARF debug info
and list the file and line pairs for given stack frame.
Such pair is not unique due to the presence of inlined functions
and the updated routine correctly handles this case.
The code is modelled after libbacktrace's `backtrace_full` routine.
There is one known issue with this approach. Macros, when invoked,
take over the current frame and shadows the file and line pair
which has invoked a macro. In particular, this makes many panicking
macros a bit harder to inspect. This really is a debuginfo problem,
and the backtrace routine should print them correctly with
a correct debuginfo.
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The Path/PathBuf pair already implements the required `Borrow`/`ToOwned` traits and can be used in a `Cow` pointer, so why not?
r? @alexcrichton
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We were recording stability attributes applied to fields in the
compiler, and even annotating it in the libs, but the compiler didn't
actually do the checks to give errors/warnings in user crates.
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which starts happening after ~2 hours of machine uptime.
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Currently we have a `set_mode` mutator, so this just adds the pairing of a
`mode` accessor to read the value.
Closes #22738
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If the filename for a path is `None` then we know that the creation of the
parent directory created the whole path so there's no need to retry the call to
`create_dir`.
Closes #22737
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Specifically, the following actions were takend:
* The `copy_memory` and `copy_nonoverlapping_memory` functions
to drop the `_memory` suffix (as it's implied by the functionality). Both
functions are now marked as `#[stable]`.
* The `set_memory` function was renamed to `write_bytes` and is now stable.
* The `zero_memory` function is now deprecated in favor of `write_bytes`
directly.
* The `Unique` pointer type is now behind its own feature gate called `unique`
to facilitate future stabilization.
[breaking-change]
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This commit moves `std::env` away from the `std::old_io` error type as well as
the `std::old_path` module. Methods returning an error now return `io::Error`
and methods consuming or returning paths use `std::path` instead of
`std::old_path`. This commit does not yet mark these APIs as `#[stable]`.
This commit also migrates `std::old_io::TempDir` to `std::fs::TempDir` with
essentially the exact same API. This type was added to interoperate with the new
path API and has its own `tempdir` feature.
Finally, this commit reverts the deprecation of `std::os` APIs returning the old
path API types. This deprecation can come back once the entire `std::old_path`
module is deprecated.
[breaking-change]
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This commit removes many unnecessary `unsafe impl` blocks as well as pushing the
needed implementations to the lowest level possible. I noticed that the bounds
for `RwLock` are a little off when reviewing #22574 and wanted to ensure that we
had our story straight on these implementations.
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r? @Gankro
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Rather than stabilize on the current API, we're going to punt this
concern to crates.io, to allow for faster iteration.
[breaking-change]
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This commit moves `std::env` away from the `std::old_io` error type as well as
the `std::old_path` module. Methods returning an error now return `io::Error`
and methods consuming or returning paths use `std::path` instead of
`std::old_path`. This commit does not yet mark these APIs as `#[stable]`.
This commit also migrates `std::old_io::TempDir` to `std::fs::TempDir` with
essentially the exact same API. This type was added to interoperate with the new
path API and has its own `tempdir` feature.
Finally, this commit reverts the deprecation of `std::os` APIs returning the old
path API types. This deprecation can come back once the entire `std::old_path`
module is deprecated.
[breaking-change]
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Specifically, the following actions were taken:
* The `copy_memory` and `copy_nonoverlapping_memory` functions
to drop the `_memory` suffix (as it's implied by the functionality). Both
functions are now marked as `#[stable]`.
* The `set_memory` function was renamed to `write_bytes` and is now stable.
* The `zero_memory` function is now deprecated in favor of `write_bytes`
directly.
* The `Unique` pointer type is now behind its own feature gate called `unique`
to facilitate future stabilization.
* All type parameters now are `T: ?Sized` wherever possible and new clauses were
added to the `offset` functions to require that the type is sized.
[breaking-change]
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"body": null,
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This commit has already been merged in #21774,
but i think it has been accidently overriden by #22584 and #22480.
r? @alexcrichton
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